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File analysis

 [1/5] from: richard:coffre:francetelecom at: 22-Apr-2002 15:59


Hi Rebollers, I have to study a Flash application. To do so I extract all the code with Action Script Viewer and I got a Text File. But now I want to find the code associated to each function and to create for each function found a file with its code. Hereafter a sample of the file. The example that follows shows the link between the function "CalcDaysInFeb" and its code located at "Symbol 317 MovieClip Frame 15". TIA rc This sample below shows the link between a function and its name in the file (this excerpt is located at the end of the file ) : dummy Symbol 316 MovieClip Frame 2 CheckDate Symbol 317 MovieClip Frame 5 CalcDaysInFeb Symbol 317 MovieClip Frame 15 FormatDate Symbol 318 MovieClip Frame 5 CheckValid Symbol 318 MovieClip Frame 15 DummyDate Symbol 342 MovieClip Frame 15 Now this is the main part of the file where the code is defined : ---------------------------------------------------------------------- Symbol 317 MovieClip Frame 5 ---------------------------------------------------------------------- Trace("In CheckDate") Set Variable: "result" = "" If (not (checkDay < 1) and not (31 < checkDay)) Trace(("Day " & checkDay) & " is valid") If (not (checkMonth < 1) and not (12 < checkMonth)) Trace(("Month " & checkMonth) & " is valid") If (Length (checkYear) = 4) Trace(("Year " & checkYear) & " has 4 digits") If (not (Eval("daysInMonth" & checkMonth) < checkDay)) Trace((("Day " & checkDay) & " <= ") & Eval("daysInMonth" & checkMonth)) If (checkMonth = 2) Call ("CalcDaysInFeb") If (not (daysInFebruary < checkDay)) Set Variable: "result" = "ok" End If Else Set Variable: "result" = "ok" End If End If Else Trace(("Year " & checkYear) & " is invalid") End If Else Trace(("Month " & checkMonth) & " is invalid") End If Else Trace(("Day " & checkDay) & " is invalid") End If ---------------------------------------------------------------------- Symbol 317 MovieClip Frame 15 ---------------------------------------------------------------------- Trace("Calculating days in Feb for " & checkYear) Set Variable: "daysInFebruary" = 28 Set Variable: "divBy4" = 0 Set Variable: "divBy100" = 0 Set Variable: "divBy400" = 0 If ((checkYear / 4) = Int (checkYear / 4)) Trace(checkYear & " divisible by 4") Set Variable: "divBy4" = 1 End If If ((checkYear / 100) = Int (checkYear / 100)) Trace(checkYear & " divisible by 100") Set Variable: "divBy100" = 1 End If If ((checkYear / 400) = Int (checkYear / 400)) Trace(checkYear & " divisible by 400") Set Variable: "divBy400" = 1 End If If ((divBy4 = 1) and (not (divBy100 = 1) or (divBy400 = 1))) Set Variable: "daysInFebruary" = 29 End If Trace("daysInFebruary = " & daysInFebruary) ---------------------------------------------------------------------- Symbol 318 MovieClip Frame 1 ---------------------------------------------------------------------- Stop Set Variable: "pos1" = GetProperty ( "MonthMovie",_x ) Set Variable: "pos2" = GetProperty ( "DayMovie",_x ) Set Variable: "pos3" = GetProperty ( "YearMovie",_x ) Trace((((("pos 1 = " & pos1) & " pos2 = ") & pos2) & " pos3 = ") & pos3) Set Variable: "dateFormat" = /Gen/UserConfig:dateFormat Trace("dateFormat is " & dateFormat) If (dateFormat eq "DMY") Set Property ("DayMovie", X Position) = pos1 Set Property ("MonthMovie", X Position) = pos2 Else If (dateFormat eq "MDY") Set Property ("MonthMovie", X Position) = pos1 Set Property ("DayMovie", X Position) = pos2 End If End If ---------------------------------------------------------------------- Symbol 318 MovieClip Frame 5 ---------------------------------------------------------------------- Set Variable: "tmpYear" = (20 & YearMovie:value) & 0000 Richard Coffre France Telecom Orbiscom TÚl. : 01 47 61 46 28 Share what you know, learn what you don't

 [2/5] from: oliva:david:seznam:cz at: 22-Apr-2002 19:39


Hello COFFRE, I'm really interested, do I understand it well, that you just want to write some simple parser that will join the function name to the propper code? I would like to try the Action Script Viewer at home (where to download it)... for some more exploration you can use my exam-swf.r script (it's part of the Rebol/Flash dialect zip archive at http://oldes.multimedia.cz/swf/) My script is not perfect because it's not complete yet and I use it just to hack the structure of my testing flash files, but may be usefull as well. cheers oldes

 [3/5] from: pyxos:netcourrier at: 22-Apr-2002 21:47


Hi Oliva The best for me should to split it into separate files for each function but I think reading your mail that a first step joining the name and the code should good. I'll read your code. To download a demo of Action Script Viewer go to http://buraks.com/asv/. Regards Richard ----Message d'origine----
>Date: Mon, 22 Apr 2002 19:39:08 +0200 >De: rebol-list <oliva.david=40seznam.cz>
<<quoted lines omitted: 15>>
>rebol-request=40rebol.com with =22unsubscribe=22 in the >subject, without the quotes.
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 [4/5] from: richard:coffre:francetelecom at: 23-Apr-2002 9:49


Oliva, When I run your script as follows :
>> do %flash/make-swf/exam-swf.r %appflash.swf
Script: "SWF Examiner" (17-Dec-2001) == %appflash.swf
>>
But I see nowhere the result of the analysis. What should I see ? Richard -----Message d'origine----- De : rebol-list [mailto:[oliva--david--seznam--cz]] Envoy=E9 : lundi 22 avril 2002 19:39 =C0 : COFFRE Richard FTO Objet : [REBOL] Re: File analysis Hello COFFRE, I'm really interested, do I understand it well, that you just want to write some simple parser that will join the function name to the propper code? I would like to try the Action Script Viewer at home (where to download it)... for some more exploration you can use my exam-swf.r script (it's part of the Rebol/Flash dialect zip archive at http://oldes.multimedia.cz/swf/) My script is not perfect because it's not complete yet and I use it just to hack the structure of my testing flash files, but may be usefull as well. cheers oldes

 [5/5] from: oliva:david:seznam:cz at: 29-Apr-2002 23:42


Hello COFFRE, Tuesday, April 23, 2002, 9:49:07 AM, you wrote: CRF> Oliva, CRF> When I run your script as follows :
>>> do %flash/make-swf/exam-swf.r %appflash.swf
CRF> Script: "SWF Examiner" (17-Dec-2001) CRF> == %appflash.swf
>>>
CRF> But I see nowhere the result of the analysis. CRF> What should I see ? Sorry for very late reply (I was not connected yet) Exam-swf.r script is not just one function but more functions. The main is the 'exam-swf so if you have the script loaded :
>> do %exam-swf.r >> exam-swf
SWF file:new.swf Searching the binary file... swf size: 56 bytes ------------------------- make object! [ version: 5 length: 56 frame-size: [0 6400 0 6400] frame-rate: 60 frame-count: 1 ] setBackgroundColor(9): 153.165.139 DoAction Tag(12): ActionPush #{006163636F756E7400} ["account"] ActionGetVariable #{1C} #{} ActionPush #{006E616D6500} ["name"] ActionGetMember #{4E} #{} ActionDelete #{3A} #{} END of ActionRecord #{00} #{} showFrame(1): end(0):
>>
I've updated the file now (because I was improving it a little bit to show some FlashMX tags properly) and add /quiet switch so the informations are not printed byt just swf object is returned:
>> exam-swf/quiet
SWF file:new.swf
>> probe swf
make object! [ header: make object! [ version: 5 length: 56 frame-size: [0 6400 0 6400] frame-rate: 60 frame-count: 1 ] rect: none data: [[9 3 #{99A58B}] [12 25 #{960900006163636F756E74001C960600006E616D65004E3A00}] [1 0 #{}] [0 0 #{}]] ]
>>
You may see that there are the Flash tags as block in the swf/data so you may work with them as for example:
>> parse-ActionRecord swf/data/2/3
ActionPush #{006163636F756E7400} ["account"] ActionGetVariable #{1C} #{} ActionPush #{006E616D6500} ["name"] ActionGetMember #{4E} #{} ActionDelete #{3A} #{} END of ActionRecord #{00} #{} But these functions are done to just print informations, not to return pure data (I've modified some of the functions to also return the data in the %exam-swf-mod.r that replaces some of the parsing functions (this is not complete yet) There is still a lot of thinks, that should be fixed or improved. cheers Oldes

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